🚄 the kind of code one might write while on a train

core/context_processors.py

@@ -1,5 +1,16 @@
+from django.conf import settings
+
 from core.models import Tag
 from core.views.view_utils import tag_cloud_context
 
 def tag_cloud_context_processor(request):
     return {'cloud': tag_cloud_context(Tag.objects.all())}
+
+def contextual_static_serving_context_processor(request):
+    if settings.SERVE_STATIC_LIBS_LOCALLY:
+        jquery_url = "/static/libs/jquery-2.1.1.min.js"
+        underscore_url = "/static/libs/underscore-min.js"
+    else:
+        jquery_url = "//code.jquery.com/jquery-2.1.1.min.js"
+        underscore_url = "//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.7.0/underscore-min.js"
+    return locals()

settings.py

@@ -81,9 +81,11 @@
     'django.core.context_processors.tz',
     'django.contrib.messages.context_processors.messages',
     'core.context_processors.tag_cloud_context_processor',
+    'core.context_processors.contextual_static_serving_context_processor'
 )
 
 STATICFILES_DIRS = ('static',)
+SERVE_STATIC_LIBS_LOCALLY = True
 
 STATIC_URL = '/static/'
 

templates/base.html

@@ -48,8 +48,8 @@
       </div>
     </div>
 
-    <script src="//code.jquery.com/jquery-2.1.1.min.js"></script>
-    <script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.7.0/underscore-min.js"></script>
+    <script src="{{ jquery_url }}"></script>
+    <script src="{{ underscore_url }}"></script>
     <script src="/static/finetooth.js"></script>
   </body>